EP2957791B1 - Amortisseur de chocs - Google Patents

Amortisseur de chocs Download PDF

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Publication number
EP2957791B1
EP2957791B1 EP15172128.9A EP15172128A EP2957791B1 EP 2957791 B1 EP2957791 B1 EP 2957791B1 EP 15172128 A EP15172128 A EP 15172128A EP 2957791 B1 EP2957791 B1 EP 2957791B1
Authority
EP
European Patent Office
Prior art keywords
inner tube
piston rod
tube
outer tube
shock absorber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15172128.9A
Other languages
German (de)
English (en)
Other versions
EP2957791A1 (fr
Inventor
Shunsuke Fujihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koganei Corp
Original Assignee
Koganei Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koganei Corp filed Critical Koganei Corp
Publication of EP2957791A1 publication Critical patent/EP2957791A1/fr
Application granted granted Critical
Publication of EP2957791B1 publication Critical patent/EP2957791B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
    • F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/003—Dampers characterised by having pressure absorbing means other than gas, e.g. sponge rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/06—Stiffness
    • F16F2228/066—Variable stiffness

Claims (4)

  1. Amortisseur de chocs (10) comprenant :
    un tube externe (11) sur lequel est montée une tige de piston (14), et dans lequel la tige de piston est mobile en va-et-vient dans une direction axiale, la tige de piston ayant une extrémité en saillie faisant saillie d'une extrémité distale du tube externe ;
    un tube interne (15) monté à rotation dans le tube externe, le tube interne et le tube externe formant collectivement une chambre de réception de liquide (16) vers laquelle est injecté du liquide, le tube interne est doté d'une pluralité de trous de communication (49) agencés à des intervalles dans une direction circonférentielle de celui-ci, et formés de sorte à pénétrer dans le tube interne dans une direction radiale de celui-ci ; et
    une partie d'actionnement rotative (19) prévue au niveau du tube interne, la partie d'actionnement rotative faisant saillie d'une extrémité de base du tube externe ; et
    un organe de ressort (33) disposé dans une chambre d'absorption de choc (28), l'organe de ressort appliquant une force de ressort à la tige de piston dans une direction en saillie de la tige de piston ;
    caractérisé en ce que l'amortisseur de chocs comprend en outre un trou de réglage de débit (48) constitué d'une surface de contact (51) étant en contact avec une surface périphérique externe du tube interne et une surface excentrique (52) étant excentrique dans la direction radiale par rapport à un axe central de rotation du tube interne et formant, conjointement avec une surface périphérique externe du tube interne, un canal de dérivation (53) communiquant avec le trou de communication, le trou de réglage de débit étant prévu sur une surface périphérique interne du tube externe,
    un degré d'ouverture de communication du canal de dérivation et du trou de communication est configuré pour être modifié par la rotation du tube interne,
    un rayon (Rq) de la surface excentrique (52) est plus grand que le rayon de rotation (Rp) du tube interne, et une quantité excentrique (e) par rapport à l'axe central de rotation du tube interne est fixée de sorte à être plus grande que la différence entre le rayon (Rq) de la surface excentrique et le rayon de rotation (Rp) du tube interne,
    l'amortisseur de chocs a : un état entièrement ouvert ayant une valeur maximale du degré d'ouverture de communication ; et un état fermé ayant une valeur minimale du degré d'ouverture de communication,
    entre l'état entièrement ouvert et l'état fermé, le degré d'ouverture de communication peut être modifié en fonction d'un angle de rotation du tube interne par rapport au tube externe de manière continue.
  2. Amortisseur de chocs selon la revendication 1, comprenant en outre un piston annulaire (27) prévu à une extrémité de base de la tige de piston, le piston annulaire séparant un intérieur de la chambre de réception de liquide dans la chambre d'absorption de choc et une chambre d'accumulateur (29), la chambre d'absorption de choc étant disposée d'un côté extrémité de base du tube interne et ayant l'organe de ressort stocké en son sein, et la chambre d'accumulateur étant disposée d'un côté extrémité distale du tube interne.
  3. Amortisseur de chocs selon la revendication 1 ou 2, dans lequel
    un premier trou de montage supportant en rotation le tube interne est prévu à l'extrémité de base du tube externe de façon à être prolongé vers le trou de réglage de débit ; et
    un organe de joint scellant une partie entre le trou de montage et le tube interne est prévu au tube interne.
  4. Amortisseur de chocs selon la revendication 2, dans lequel
    le tube externe a une extrémité distale dotée d'un couvercle de tige à travers lequel s'étend la tige de piston ; et
    le couvercle de tige est doté d'un organe d'accumulateur qui est contracté par le liquide s'écoulant à partir de la chambre d'absorption de choc antichoc vers la chambre d'accumulateur lors d'un déplacement vers l'arrière de la tige de piston, et qui alimente la chambre d'absorption de choc en liquide à partir de la chambre d'accumulateur lors d'un déplacement en saillie de la tige de piston.
EP15172128.9A 2014-06-17 2015-06-15 Amortisseur de chocs Active EP2957791B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014124272A JP6259722B2 (ja) 2014-06-17 2014-06-17 ショックアブソーバ

Publications (2)

Publication Number Publication Date
EP2957791A1 EP2957791A1 (fr) 2015-12-23
EP2957791B1 true EP2957791B1 (fr) 2018-06-06

Family

ID=53397952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15172128.9A Active EP2957791B1 (fr) 2014-06-17 2015-06-15 Amortisseur de chocs

Country Status (5)

Country Link
US (1) US9551395B2 (fr)
EP (1) EP2957791B1 (fr)
JP (1) JP6259722B2 (fr)
CN (1) CN204805421U (fr)
TW (1) TWI644030B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6388567B2 (ja) * 2015-07-24 2018-09-12 株式会社コガネイ ショックアブソーバ
JP2017172777A (ja) * 2016-03-25 2017-09-28 株式会社ショーワ エアばね構造
US11007834B2 (en) 2016-12-15 2021-05-18 Tenneco Automotive Operating Company Inc. Baffle tube for damper with electromechanical valve
CN106704457B (zh) * 2016-12-27 2018-12-07 浙江天力机车部件有限公司 一种汽车减震器总成
CN107044504B (zh) * 2016-12-27 2019-01-11 徐州德高电动车科技有限公司 一种电动车减震器总成
US10987988B2 (en) * 2017-06-28 2021-04-27 Tenneco Automotive Operating Company Inc. Damper with volume reducing insert
US10704641B2 (en) 2017-12-15 2020-07-07 Tenneco Automotive Operating Company Inc. Baffle for damper with electromechanical valve
US10837515B2 (en) 2019-02-11 2020-11-17 Tenneco Automotive Operating Company Inc. Damper baffle tube with elastomeric skirt
CN112610639B (zh) * 2020-12-09 2022-07-19 西安精密机械研究所 一种弹簧式液压阻尼装置及阻尼方法
US11959718B2 (en) * 2021-04-16 2024-04-16 Kyntec Corporation Hydraulic recoil device for handgun applications
US11959529B1 (en) * 2023-08-14 2024-04-16 Alfred Franklin Nibecker Allow air springs to be self-charging

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US4059175A (en) * 1975-05-06 1977-11-22 Dressell Jr Richard G Linear force shock absorber
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JPS6120938U (ja) * 1984-07-12 1986-02-06 太陽鉄工株式会社 シヨツクアブソ−バ
JPS6166235A (ja) 1984-09-10 1986-04-05 Toshiba Corp 対物レンズ駆動装置
JPS6166235U (fr) 1984-10-08 1986-05-07
US5050712A (en) * 1989-04-25 1991-09-24 Enertrols, Inc. Shock absorber
JPH0628377A (ja) 1992-07-10 1994-02-04 Toshiba Corp 帳票出力装置
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Also Published As

Publication number Publication date
US9551395B2 (en) 2017-01-24
EP2957791A1 (fr) 2015-12-23
CN204805421U (zh) 2015-11-25
TW201600758A (zh) 2016-01-01
TWI644030B (zh) 2018-12-11
US20150362040A1 (en) 2015-12-17
JP2016003710A (ja) 2016-01-12
JP6259722B2 (ja) 2018-01-10

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